Viral Upper Respiratory Tract Infection (URTI): This is the most common cause of sore throat, congestion, and burning eyes, often due to viruses such as rhinovirus, coronavirus, or adenovirus. The combination of symptoms is typical for a viral infection, which usually resolves on its own.

Allergic Rhinitis: This condition can cause congestion, burning eyes, and sometimes a sore throat due to postnasal drip. It's a common condition, especially in individuals with a history of allergies.
Influenza: Although more commonly associated with systemic symptoms like fever and body aches, influenza can also present with sore throat, congestion, and eye symptoms, especially in the early stages.
Sinusitis: Whether acute or chronic, sinusitis can cause congestion and sore throat due to sinus pressure and drainage. Burning eyes can be associated if there's significant nasal congestion leading to sinus pressure.

Epiglottitis: A severe and potentially life-threatening condition that can cause sore throat and difficulty swallowing. While less common, it's crucial to consider, especially if the patient has a high fever, severe sore throat, and difficulty breathing.
Strep Throat (Streptococcal Pharyngitis): Although typically presenting with a severe sore throat and fever, it's essential to diagnose and treat promptly to prevent complications like rheumatic fever.
Kawasaki Disease: More common in children, this condition can cause fever, sore throat, and conjunctivitis (burning eyes). It's a do-not-miss diagnosis due to the risk of cardiac complications if not treated.

Lemierre's Syndrome: A rare condition following a throat infection, characterized by fever, sore throat, and neck pain, which can lead to serious complications if not recognized and treated.
Wegener's Granulomatosis (Granulomatosis with Polyangiitis): A rare autoimmune disorder that can cause a variety of symptoms, including sore throat, sinusitis, and eye inflammation. It's a diagnosis to consider in patients with persistent or severe symptoms not responding to typical treatments.
Sarcoidosis: Although rare, sarcoidosis can cause a wide range of symptoms, including sore throat, sinusitis, and eye symptoms like uveitis, which can lead to serious complications if not managed properly.